Acute gastroenteritis that occurs after an incubation period of two to three days and commonly affects children is probably caused by

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Rotavirus has an incubation period of 2-3 days and is a common cause of acute gastroenteritis in children. Giardia has a longer incubation period of 1-2 weeks and is more commonly associated with waterborne outbreaks. Trichinella is a parasite commonly found in undercooked pork and causes a different type of illness (trichinellosis). Staphylococcus aureus is a bacteria that can cause food poisoning but typically has a shorter incubation period (1-6 hours) and is associated with contaminated food. Salmonella can also cause gastroenteritis, but the incubation period is usually longer (6-48 hours) and can vary depending on the strain of the bacteria.

Acute Gastroenteritis That Occurs After an Incubation Period of Two